Matching Gain Before And After Effects

[ustk]

@d-healey To me, auto make up is a fixed compensation based on the different settings you adjusted, not an IN/OUT comparison (but I might have wrong here, or at least for some references)

in this case, Auto make-up is not assimilable to gain line automation (the fluctuating signal has no impact on the auto gain that is set. On many compressors, make-up gain is simply a gain control, auto-make-up is a gain control compensated when you dial the comp parameters

@orange exactly, Dave eventually described a comp/expander.

[d.healey]

@ustk

Dave eventually described a comp/expander.

Not quite, I didn't mean a fixed input gain threshold, I meant a threshold of gain difference between the input and the output. So if the difference between the two is more than X turn the gain knob to compensate.

[ustk]

@d-healey I see... Are you not afraid a threshold can lead in some nasty fluctuations?

I'll try to make scriptnode example that should work...

[d.healey]

@ustk

Are you not afraid a threshold can lead in some nasty fluctuations?

I don't know what I'm doing or talking about so I have no fear

[ustk]

@d-healey "FearlessDave" :beaming_face_with_smiling_eyes:

[Dan Korneff]

@d-healey said in Matching Gain Before And After Effects:

Some compressors have auto makeup gain, how does that work because that's what I want

I had to calculate a formula for a makeup curve depending on the settings of the compressor controls. It looks like this:

Math.log(((-Threshold.getValue() * 10) * Ratio.getValue() +1) + (((200 - Attack.getValue())+1)/100));

Results may vary :beaming_face_with_smiling_eyes:

[d.healey]

@Dan-Korneff Thank you! Looks like I don't want that after all, but still useful to know.

[ustk]

@Dan-Korneff said in Matching Gain Before And After Effects:

Results may vary

Thought we didn't want gain fluctuations...

[Dan Korneff]

@ustk "Results may vary" means the calculation isn't perfect. It's a constant level, but doesn't work great for light compression or extreme compression since peak Gain Reduction isn't factored in. Every other setting seems to balance out nicely.

[ustk]

@Dan-Korneff Yeah that was just a stupid joke attempt...

[Dan Korneff]

@ustk
ha! my brain must not be working yet.

[ustk]

@d-healey Alright I have made a little example of IN/OUT compensation that seems to work, with integration time, sensitivity is just a difference multiplier. High difference with ultra low smoothing time will make the pumping very apparent, so from there I guess it's just a matter of finding the most transparent settings...

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[ustk]

@d-healey I forgot the threshold part... Hmm, I don't obviously see where to put one in this example

[ustk]

@d-healey A wee bit better with Threshold and DRY/WET and FX LEVEL for testing purpose...

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[d.healey]

@ustk Wow thanks! I shall play around with it.

[d.healey]

@ustk That works really well!

[ustk]

@d-healey Glad it’s what you needed!